SKF RNU 203 TN9 single-row cylindrical roller bearing 22.9 x 40 x 12 mm

Supplier number: SKF RNU 203 TN9 | EAN 7316577663931

Recommended Retail Price €74.06

36.60 tax incl.

€30.25 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 2 products in stock.

Ordered before 20:00 - delivered tomorrow 30/09/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

↓ Documents (1) ✆ Talk to a specialist

High radial capacity with Skf

Practical benefits

High radial load capacity: The single row cylindrical roller design reliably carries heavy radial loads in compact machinery setups.
Compact design without ring: Running directly on a hardened shaft without an inner ring allows you to build a stronger and stiffer assembly.
Low friction polyamide cage: The reinforced polymer cage reduces heat buildup and ensures smooth operation at high rotational speeds.

In a nutshell

The right choise for

With the Skf rnu 203 TN9 single row cylindrical roller bearing, you achieve an exceptionally compact and rigid setup in gearboxes and industrial drive systems. Because it is designed without an inner ring, you mount it directly onto a hardened and ground shaft measuring 22.9 mm. This saves valuable radial installation space while allowing for a thicker, stronger shaft design. The nu configuration carries heavy radial loads with ease and smoothly accommodates axial displacement in both directions during thermal expansion. Featuring a glass-fibre reinforced polyamide cage, it keeps friction and heat generation low to ensure smooth, dependable operation at high speeds.

Product information FAQ

€36.60

In stock - tax incl.

Key features according to our expert

Inner diameter: 22,9 mm
Width: 12 mm
Number of rows: 1
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Bore type: Cylindrical
Outer diameter: 40 mm

Product description

Single row cylindrical roller bearings of the NU design without an inner ring consist of an outer ring with a roller and cage assembly. They are typically used in applications where hardened and ground raceways are provided on the shaft. Without the inner ring, a larger shaft diameter can be used to provide a stronger, stiffer shaft. The bearings can accommodate axial displacement in both directions, limited only by the width of the raceway on the shaft.

High radial load carrying capacity
Enable a stronger, stiffer shaft
Low friction
Long service life
Accommodate axial displacement in both directions

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 22,9 mm
Width: 12 mm
Number of rows: 1
Sealing (bearing): Without seals
Material (bearing seal): Not applicable
Bore type: Cylindrical
Outer diameter: 40 mm
Basic static load rating: 9.5
Bearing part: Bearing without inner ring
Tolerance class: Normal
Loose flange: None
Lubricant: None
Relubrication feature: Without
Reference speed: 19000
Sealing: Without
Cage: Non-metallic
Locating feature, bearing outer ring: None
Basic dynamic load rating: 11.7
Number of flanges, outer ring: 2
Limiting speed: 22000
Coating: Without
Outside diameter: 40
Diameter under rollers: 22.9

Brand SKF
01070271
EAN 7316577663931
Supplier number SKF RNU 203 TN9

Frequently asked questions about this product

Answered by specialists

Why use this bearing without an inner ring?: You mount it directly onto a hardened and ground shaft, enabling a stiffer shaft design and saving installation space.
What are the exact dimensions of this cylindrical roller bearing?: The bearing has an outer diameter of 40 mm, a width of 12 mm, and a diameter under the rollers of 22.9 mm.
What does the TN9 designation mean for SKF?: The TN9 code indicates that the bearing features a glass-fibre reinforced polyamide cage.
Can this bearing accommodate axial displacement?: Yes, the NU design allows axial displacement of the shaft in both directions.
Does this cylindrical roller bearing have seals?: No, this model is an open bearing without built-in sealing.